Cobb Island, MD population, income and ZIP codes

Cobb Island CDP is a small town in Maryland, with 1,162 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #319 of 536 ranked by population — larger than 40% of them. The median age here is 45.7 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in Cobb Island CDP earn a median of $161,141 a year, 105.2% above the national figure of $78,538 and 48% above the $109,026 median for the 332 Maryland cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 1.8% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Cobb Island CDP is valued at $246,100, 18.9% below the national figure and 38% below the $397,200 peer median, while median gross rent runs not published a month. The home-price-to-income ratio works out to 1.5×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 85.6% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

The Census withheld gross rent for Cobb Island CDP because the sample was too thin to publish at this geography. Those values were suppressed at the source, not lost in our dataset, and we do not model a replacement. Everything else on this page comes straight from the ACS 2019-2023 ACS 5-year tables.